Tom Holland and Robert Downey Jr. have spent a ton of time together while filming and promoting all their Marvel movies as Spider-Man and Iron Man, respectively. It's only natural that the two became friends, but Tom told Seth Myers in 2019 that they got off to a rocky start when Tom accidentally ghosted Robert's phone calls and Robert subsequently ignored all his. Of course it all came down to just plain missing the calls, thankfully, and the two have been chummy ever since.